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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2012 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: AbstractConfiguredBean.html 740 2013-10-02 21:27:31Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.dellroad.stuff.pobj;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import org.dellroad.stuff.spring.AbstractBean;<a name="line.10"></a>
<span class="sourceLineNo">011</span><a name="line.11"></a>
<span class="sourceLineNo">012</span>import org.springframework.beans.factory.BeanNameAware;<a name="line.12"></a>
<span class="sourceLineNo">013</span><a name="line.13"></a>
<span class="sourceLineNo">014</span>/**<a name="line.14"></a>
<span class="sourceLineNo">015</span> * Support superclass for Spring beans that are configured by a {@link PersistentObject} root object, or some portion thereof.<a name="line.15"></a>
<span class="sourceLineNo">016</span> *<a name="line.16"></a>
<span class="sourceLineNo">017</span> * &lt;p&gt;<a name="line.17"></a>
<span class="sourceLineNo">018</span> * This superclass handles registering as a listener on the {@link PersistentObject}, and invokes the<a name="line.18"></a>
<span class="sourceLineNo">019</span> * {@link #start start()}, {@link #stop stop()}, and {@link #reconfigure reconfigure()} lifecycle methods as needed.<a name="line.19"></a>
<span class="sourceLineNo">020</span> * The subclass method {@link #getBeanConfig} determines the portion of the configuration object of interest to the subclass.<a name="line.20"></a>
<span class="sourceLineNo">021</span> * Subclasses may also override {@link #requiresReconfigure} to determine whether a configuration change requires a<a name="line.21"></a>
<span class="sourceLineNo">022</span> * {@link #reconfigure reconfigure()} operation.<a name="line.22"></a>
<span class="sourceLineNo">023</span> *<a name="line.23"></a>
<span class="sourceLineNo">024</span> * &lt;p&gt;<a name="line.24"></a>
<span class="sourceLineNo">025</span> * Empty starts and empty stops are supported; these are treated as an unconfigured state and the bean will be (or remain)<a name="line.25"></a>
<span class="sourceLineNo">026</span> * stopped in those states.<a name="line.26"></a>
<span class="sourceLineNo">027</span> *<a name="line.27"></a>
<span class="sourceLineNo">028</span> * &lt;p&gt;<a name="line.28"></a>
<span class="sourceLineNo">029</span> * At any point in time, {@link #getBeanConfig() getBeanConfig()} (and it's alternate form {@link #getRequiredConfig})<a name="line.29"></a>
<span class="sourceLineNo">030</span> * access this bean's current configuration (if any).<a name="line.30"></a>
<span class="sourceLineNo">031</span> *<a name="line.31"></a>
<span class="sourceLineNo">032</span> * @param &lt;ROOT&gt; type of the configuration object root<a name="line.32"></a>
<span class="sourceLineNo">033</span> * @param &lt;T&gt; type of the sub-graph of ROOT that this bean is configured by<a name="line.33"></a>
<span class="sourceLineNo">034</span> */<a name="line.34"></a>
<span class="sourceLineNo">035</span>public abstract class AbstractConfiguredBean&lt;ROOT, T&gt; extends AbstractBean<a name="line.35"></a>
<span class="sourceLineNo">036</span>  implements BeanNameAware, PersistentObjectListener&lt;ROOT&gt; {<a name="line.36"></a>
<span class="sourceLineNo">037</span><a name="line.37"></a>
<span class="sourceLineNo">038</span>    private PersistentObject&lt;ROOT&gt; persistentObject;<a name="line.38"></a>
<span class="sourceLineNo">039</span>    private String beanName;<a name="line.39"></a>
<span class="sourceLineNo">040</span>    private boolean running;<a name="line.40"></a>
<span class="sourceLineNo">041</span>    private boolean configured;<a name="line.41"></a>
<span class="sourceLineNo">042</span><a name="line.42"></a>
<span class="sourceLineNo">043</span>    /**<a name="line.43"></a>
<span class="sourceLineNo">044</span>     * Default constructor.<a name="line.44"></a>
<span class="sourceLineNo">045</span>     */<a name="line.45"></a>
<span class="sourceLineNo">046</span>    protected AbstractConfiguredBean() {<a name="line.46"></a>
<span class="sourceLineNo">047</span>    }<a name="line.47"></a>
<span class="sourceLineNo">048</span><a name="line.48"></a>
<span class="sourceLineNo">049</span>    /**<a name="line.49"></a>
<span class="sourceLineNo">050</span>     * Constructor.<a name="line.50"></a>
<span class="sourceLineNo">051</span>     *<a name="line.51"></a>
<span class="sourceLineNo">052</span>     * @param persistentObject keeper of the current configuration<a name="line.52"></a>
<span class="sourceLineNo">053</span>     */<a name="line.53"></a>
<span class="sourceLineNo">054</span>    protected AbstractConfiguredBean(PersistentObject&lt;ROOT&gt; persistentObject) {<a name="line.54"></a>
<span class="sourceLineNo">055</span>        this.setPersistentObject(persistentObject);<a name="line.55"></a>
<span class="sourceLineNo">056</span>    }<a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
<span class="sourceLineNo">058</span>    /**<a name="line.58"></a>
<span class="sourceLineNo">059</span>     * Configure the {@link PersistentObject} that this instance will monitor.<a name="line.59"></a>
<span class="sourceLineNo">060</span>     *<a name="line.60"></a>
<span class="sourceLineNo">061</span>     * @param persistentObject keeper of the this bean's configuration<a name="line.61"></a>
<span class="sourceLineNo">062</span>     */<a name="line.62"></a>
<span class="sourceLineNo">063</span>    protected void setPersistentObject(PersistentObject&lt;ROOT&gt; persistentObject) {<a name="line.63"></a>
<span class="sourceLineNo">064</span>        this.persistentObject = persistentObject;<a name="line.64"></a>
<span class="sourceLineNo">065</span>    }<a name="line.65"></a>
<span class="sourceLineNo">066</span><a name="line.66"></a>
<span class="sourceLineNo">067</span>    @Override<a name="line.67"></a>
<span class="sourceLineNo">068</span>    public void setBeanName(String beanName) {<a name="line.68"></a>
<span class="sourceLineNo">069</span>        this.beanName = beanName;<a name="line.69"></a>
<span class="sourceLineNo">070</span>    }<a name="line.70"></a>
<span class="sourceLineNo">071</span><a name="line.71"></a>
<span class="sourceLineNo">072</span>    protected String getBeanName() {<a name="line.72"></a>
<span class="sourceLineNo">073</span>        return this.beanName != null ? this.beanName : "" + this;<a name="line.73"></a>
<span class="sourceLineNo">074</span>    }<a name="line.74"></a>
<span class="sourceLineNo">075</span><a name="line.75"></a>
<span class="sourceLineNo">076</span>    /**<a name="line.76"></a>
<span class="sourceLineNo">077</span>     * Start and configure this instance if the current configuration is valid;<a name="line.77"></a>
<span class="sourceLineNo">078</span>     * if not (i.e., "empty start"), then do nothing and wait until it becomes valid.<a name="line.78"></a>
<span class="sourceLineNo">079</span>     */<a name="line.79"></a>
<span class="sourceLineNo">080</span>    @Override<a name="line.80"></a>
<span class="sourceLineNo">081</span>    public synchronized void afterPropertiesSet() throws Exception {<a name="line.81"></a>
<span class="sourceLineNo">082</span>        super.afterPropertiesSet();<a name="line.82"></a>
<span class="sourceLineNo">083</span><a name="line.83"></a>
<span class="sourceLineNo">084</span>        // Check config<a name="line.84"></a>
<span class="sourceLineNo">085</span>        if (this.persistentObject == null)<a name="line.85"></a>
<span class="sourceLineNo">086</span>            throw new IllegalArgumentException("no PersistentObject configured");<a name="line.86"></a>
<span class="sourceLineNo">087</span><a name="line.87"></a>
<span class="sourceLineNo">088</span>        // Listen for updates<a name="line.88"></a>
<span class="sourceLineNo">089</span>        this.persistentObject.addListener(this);<a name="line.89"></a>
<span class="sourceLineNo">090</span>        this.running = true;<a name="line.90"></a>
<span class="sourceLineNo">091</span><a name="line.91"></a>
<span class="sourceLineNo">092</span>        // Start bean if configured<a name="line.92"></a>
<span class="sourceLineNo">093</span>        T beanConfig = this.getBeanConfig();<a name="line.93"></a>
<span class="sourceLineNo">094</span>        if (beanConfig == null)<a name="line.94"></a>
<span class="sourceLineNo">095</span>            return;<a name="line.95"></a>
<span class="sourceLineNo">096</span>        try {<a name="line.96"></a>
<span class="sourceLineNo">097</span>            this.start(beanConfig);<a name="line.97"></a>
<span class="sourceLineNo">098</span>            this.configured = true;<a name="line.98"></a>
<span class="sourceLineNo">099</span>        } catch (Exception e) {<a name="line.99"></a>
<span class="sourceLineNo">100</span>            this.log.error("error starting bean " + this.getBeanName() + ": " + e.getMessage(), e);<a name="line.100"></a>
<span class="sourceLineNo">101</span>            throw e;<a name="line.101"></a>
<span class="sourceLineNo">102</span>        }<a name="line.102"></a>
<span class="sourceLineNo">103</span>    }<a name="line.103"></a>
<span class="sourceLineNo">104</span><a name="line.104"></a>
<span class="sourceLineNo">105</span>    /**<a name="line.105"></a>
<span class="sourceLineNo">106</span>     * Stop this instance. Does nothing if already stopped.<a name="line.106"></a>
<span class="sourceLineNo">107</span>     */<a name="line.107"></a>
<span class="sourceLineNo">108</span>    @Override<a name="line.108"></a>
<span class="sourceLineNo">109</span>    public synchronized void destroy() throws Exception {<a name="line.109"></a>
<span class="sourceLineNo">110</span>        this.running = false;<a name="line.110"></a>
<span class="sourceLineNo">111</span>        this.configured = false;<a name="line.111"></a>
<span class="sourceLineNo">112</span>        this.persistentObject.removeListener(this);<a name="line.112"></a>
<span class="sourceLineNo">113</span>        this.stop();<a name="line.113"></a>
<span class="sourceLineNo">114</span>        super.destroy();<a name="line.114"></a>
<span class="sourceLineNo">115</span>    }<a name="line.115"></a>
<span class="sourceLineNo">116</span><a name="line.116"></a>
<span class="sourceLineNo">117</span>    /**<a name="line.117"></a>
<span class="sourceLineNo">118</span>     * Is this bean configured? "Configured" means that either {@link #start start()} or {@link #reconfigure reconfigure()} has<a name="line.118"></a>
<span class="sourceLineNo">119</span>     * been invoked successfully since the most recent {@link #stop stop()}.<a name="line.119"></a>
<span class="sourceLineNo">120</span>     */<a name="line.120"></a>
<span class="sourceLineNo">121</span>    public synchronized boolean isConfigured() {<a name="line.121"></a>
<span class="sourceLineNo">122</span>        return this.configured;<a name="line.122"></a>
<span class="sourceLineNo">123</span>    }<a name="line.123"></a>
<span class="sourceLineNo">124</span><a name="line.124"></a>
<span class="sourceLineNo">125</span>    @Override<a name="line.125"></a>
<span class="sourceLineNo">126</span>    public final synchronized void handleEvent(PersistentObjectEvent&lt;ROOT&gt; event) {<a name="line.126"></a>
<span class="sourceLineNo">127</span><a name="line.127"></a>
<span class="sourceLineNo">128</span>        // Handle race condition vs. destroy()<a name="line.128"></a>
<span class="sourceLineNo">129</span>        if (!this.running)<a name="line.129"></a>
<span class="sourceLineNo">130</span>            return;<a name="line.130"></a>
<span class="sourceLineNo">131</span>        final T oldConfig = event.getOldRoot() != null ? this.getBeanConfig(event.getOldRoot()) : null;<a name="line.131"></a>
<span class="sourceLineNo">132</span>        final T newConfig = event.getNewRoot() != null ? this.getBeanConfig(event.getNewRoot()) : null;<a name="line.132"></a>
<span class="sourceLineNo">133</span><a name="line.133"></a>
<span class="sourceLineNo">134</span>        // Reconfigure bean as required<a name="line.134"></a>
<span class="sourceLineNo">135</span>        boolean configuredBefore = this.configured;<a name="line.135"></a>
<span class="sourceLineNo">136</span>        boolean configuredAfter = newConfig != null;<a name="line.136"></a>
<span class="sourceLineNo">137</span>        if (!configuredBefore &amp;&amp; configuredAfter) {<a name="line.137"></a>
<span class="sourceLineNo">138</span>            try {<a name="line.138"></a>
<span class="sourceLineNo">139</span>                this.start(newConfig);<a name="line.139"></a>
<span class="sourceLineNo">140</span>                this.configured = true;<a name="line.140"></a>
<span class="sourceLineNo">141</span>            } catch (Exception e) {<a name="line.141"></a>
<span class="sourceLineNo">142</span>                this.log.error("error starting bean " + this.getBeanName() + ": " + e.getMessage(), e);<a name="line.142"></a>
<span class="sourceLineNo">143</span>            }<a name="line.143"></a>
<span class="sourceLineNo">144</span>        } else if (configuredBefore &amp;&amp; !configuredAfter) {<a name="line.144"></a>
<span class="sourceLineNo">145</span>            this.configured = false;<a name="line.145"></a>
<span class="sourceLineNo">146</span>            try {<a name="line.146"></a>
<span class="sourceLineNo">147</span>                this.stop();<a name="line.147"></a>
<span class="sourceLineNo">148</span>            } catch (Exception e) {<a name="line.148"></a>
<span class="sourceLineNo">149</span>                this.log.error("error stopping bean " + this.getBeanName() + ": " + e.getMessage(), e);<a name="line.149"></a>
<span class="sourceLineNo">150</span>            }<a name="line.150"></a>
<span class="sourceLineNo">151</span>        } else if (configuredBefore &amp;&amp; configuredAfter) {<a name="line.151"></a>
<span class="sourceLineNo">152</span><a name="line.152"></a>
<span class="sourceLineNo">153</span>            // Determine if bean requires reconfiguration<a name="line.153"></a>
<span class="sourceLineNo">154</span>            if (!this.requiresReconfigure(oldConfig, newConfig))<a name="line.154"></a>
<span class="sourceLineNo">155</span>                return;<a name="line.155"></a>
<span class="sourceLineNo">156</span><a name="line.156"></a>
<span class="sourceLineNo">157</span>            // Reconfigure bean<a name="line.157"></a>
<span class="sourceLineNo">158</span>            try {<a name="line.158"></a>
<span class="sourceLineNo">159</span>                this.configured = false;<a name="line.159"></a>
<span class="sourceLineNo">160</span>                this.reconfigure(oldConfig, newConfig);<a name="line.160"></a>
<span class="sourceLineNo">161</span>                this.configured = true;<a name="line.161"></a>
<span class="sourceLineNo">162</span>            } catch (Exception e) {<a name="line.162"></a>
<span class="sourceLineNo">163</span>                this.log.error("error reconfiguring bean " + this.getBeanName() + ": " + e.getMessage(), e);<a name="line.163"></a>
<span class="sourceLineNo">164</span>            }<a name="line.164"></a>
<span class="sourceLineNo">165</span>        }<a name="line.165"></a>
<span class="sourceLineNo">166</span>    }<a name="line.166"></a>
<span class="sourceLineNo">167</span><a name="line.167"></a>
<span class="sourceLineNo">168</span>    /**<a name="line.168"></a>
<span class="sourceLineNo">169</span>     * Start this bean. This instance's monitor will be locked when this method is invoked.<a name="line.169"></a>
<span class="sourceLineNo">170</span>     *<a name="line.170"></a>
<span class="sourceLineNo">171</span>     * &lt;p&gt;<a name="line.171"></a>
<span class="sourceLineNo">172</span>     * The implementation in {@link AbstractConfiguredBean} does nothing.<a name="line.172"></a>
<span class="sourceLineNo">173</span>     *<a name="line.173"></a>
<span class="sourceLineNo">174</span>     * @param beanConfig configuration sub-tree object, never null<a name="line.174"></a>
<span class="sourceLineNo">175</span>     * @throws Exception upon failure; in this case the bean will be considered not configured<a name="line.175"></a>
<span class="sourceLineNo">176</span>     */<a name="line.176"></a>
<span class="sourceLineNo">177</span>    protected void start(T beanConfig) throws Exception {<a name="line.177"></a>
<span class="sourceLineNo">178</span>    }<a name="line.178"></a>
<span class="sourceLineNo">179</span><a name="line.179"></a>
<span class="sourceLineNo">180</span>    /**<a name="line.180"></a>
<span class="sourceLineNo">181</span>     * Stop this bean. This instance's monitor will be locked when this method is invoked.<a name="line.181"></a>
<span class="sourceLineNo">182</span>     *<a name="line.182"></a>
<span class="sourceLineNo">183</span>     * &lt;p&gt;<a name="line.183"></a>
<span class="sourceLineNo">184</span>     * The implementation in {@link AbstractConfiguredBean} does nothing.<a name="line.184"></a>
<span class="sourceLineNo">185</span>     */<a name="line.185"></a>
<span class="sourceLineNo">186</span>    protected void stop() {<a name="line.186"></a>
<span class="sourceLineNo">187</span>    }<a name="line.187"></a>
<span class="sourceLineNo">188</span><a name="line.188"></a>
<span class="sourceLineNo">189</span>    /**<a name="line.189"></a>
<span class="sourceLineNo">190</span>     * Reconfigure this bean. This instance's monitor will be locked when this method is invoked.<a name="line.190"></a>
<span class="sourceLineNo">191</span>     *<a name="line.191"></a>
<span class="sourceLineNo">192</span>     * &lt;p&gt;<a name="line.192"></a>
<span class="sourceLineNo">193</span>     * The implementation in {@link AbstractConfiguredBean} invokes {@link #stop} followed by {@link #start}.<a name="line.193"></a>
<span class="sourceLineNo">194</span>     *<a name="line.194"></a>
<span class="sourceLineNo">195</span>     * @param oldConfig old configuration sub-tree object, never null<a name="line.195"></a>
<span class="sourceLineNo">196</span>     * @param newConfig new configuration sub-tree object, never null<a name="line.196"></a>
<span class="sourceLineNo">197</span>     * @throws Exception upon failure; in this case the bean will be considered &lt;b&gt;not&lt;/b&gt; configured<a name="line.197"></a>
<span class="sourceLineNo">198</span>     */<a name="line.198"></a>
<span class="sourceLineNo">199</span>    protected void reconfigure(T oldConfig, T newConfig) throws Exception {<a name="line.199"></a>
<span class="sourceLineNo">200</span>        this.stop();<a name="line.200"></a>
<span class="sourceLineNo">201</span>        this.start(newConfig);<a name="line.201"></a>
<span class="sourceLineNo">202</span>    }<a name="line.202"></a>
<span class="sourceLineNo">203</span><a name="line.203"></a>
<span class="sourceLineNo">204</span>    /**<a name="line.204"></a>
<span class="sourceLineNo">205</span>     * Determine if a change from {@code oldConfig} to {@code newConfig} requires a {@link #reconfigure reconfigure()} operation.<a name="line.205"></a>
<span class="sourceLineNo">206</span>     *<a name="line.206"></a>
<span class="sourceLineNo">207</span>     * &lt;p&gt;<a name="line.207"></a>
<span class="sourceLineNo">208</span>     * The implementation in {@link AbstractConfiguredBean} invokes {@code newConfig.equals(oldConfig)} and returns<a name="line.208"></a>
<span class="sourceLineNo">209</span>     * true if they are not equal.<a name="line.209"></a>
<span class="sourceLineNo">210</span>     *<a name="line.210"></a>
<span class="sourceLineNo">211</span>     * @param oldConfig old configuration sub-tree object, never null<a name="line.211"></a>
<span class="sourceLineNo">212</span>     * @param newConfig new configuration sub-tree object, never null<a name="line.212"></a>
<span class="sourceLineNo">213</span>     * @return true if {@link #reconfigure reconfigure()} needs to be invoked<a name="line.213"></a>
<span class="sourceLineNo">214</span>     */<a name="line.214"></a>
<span class="sourceLineNo">215</span>    protected boolean requiresReconfigure(T oldConfig, T newConfig) {<a name="line.215"></a>
<span class="sourceLineNo">216</span>        return !newConfig.equals(oldConfig);<a name="line.216"></a>
<span class="sourceLineNo">217</span>    }<a name="line.217"></a>
<span class="sourceLineNo">218</span><a name="line.218"></a>
<span class="sourceLineNo">219</span>    /**<a name="line.219"></a>
<span class="sourceLineNo">220</span>     * Extract the configuration sub-tree object that this node uses for its configuration given the root configuration object.<a name="line.220"></a>
<span class="sourceLineNo">221</span>     *<a name="line.221"></a>
<span class="sourceLineNo">222</span>     * @param rootConfig root config object, never null<a name="line.222"></a>
<span class="sourceLineNo">223</span>     * @return this bean's config object<a name="line.223"></a>
<span class="sourceLineNo">224</span>     */<a name="line.224"></a>
<span class="sourceLineNo">225</span>    protected abstract T getBeanConfig(ROOT rootConfig);<a name="line.225"></a>
<span class="sourceLineNo">226</span><a name="line.226"></a>
<span class="sourceLineNo">227</span>    /**<a name="line.227"></a>
<span class="sourceLineNo">228</span>     * Get the current configuration (sub-tree) object appropriate for this instance, or null if not configured.<a name="line.228"></a>
<span class="sourceLineNo">229</span>     *<a name="line.229"></a>
<span class="sourceLineNo">230</span>     * @return current bean configuration, or null if not {@linkplain #isConfigured configured}<a name="line.230"></a>
<span class="sourceLineNo">231</span>     *  or the {@link PersistentObject} has been stopped<a name="line.231"></a>
<span class="sourceLineNo">232</span>     */<a name="line.232"></a>
<span class="sourceLineNo">233</span>    protected synchronized T getBeanConfig() {<a name="line.233"></a>
<span class="sourceLineNo">234</span>        ROOT rootConfig;<a name="line.234"></a>
<span class="sourceLineNo">235</span>        synchronized (this.persistentObject) {<a name="line.235"></a>
<span class="sourceLineNo">236</span>            if (!this.persistentObject.isStarted())<a name="line.236"></a>
<span class="sourceLineNo">237</span>                return null;<a name="line.237"></a>
<span class="sourceLineNo">238</span>            rootConfig = this.persistentObject.getSharedRoot();<a name="line.238"></a>
<span class="sourceLineNo">239</span>        }<a name="line.239"></a>
<span class="sourceLineNo">240</span>        if (rootConfig == null)<a name="line.240"></a>
<span class="sourceLineNo">241</span>            return null;<a name="line.241"></a>
<span class="sourceLineNo">242</span>        return this.getBeanConfig(rootConfig);<a name="line.242"></a>
<span class="sourceLineNo">243</span>    }<a name="line.243"></a>
<span class="sourceLineNo">244</span><a name="line.244"></a>
<span class="sourceLineNo">245</span>    /**<a name="line.245"></a>
<span class="sourceLineNo">246</span>     * Get the current configuration (sub-tree) object appropriate for this instance, and require that<a name="line.246"></a>
<span class="sourceLineNo">247</span>     * this instance also be {@linkplain #isConfigured configured} at the time this method is invoked.<a name="line.247"></a>
<span class="sourceLineNo">248</span>     * This method is like {@link #getBeanConfig getBeanConfig()} but it throws an exception instead of returning null.<a name="line.248"></a>
<span class="sourceLineNo">249</span>     *<a name="line.249"></a>
<span class="sourceLineNo">250</span>     * @return current bean configuration, never null<a name="line.250"></a>
<span class="sourceLineNo">251</span>     * @throws NotConfiguredException if this instance is not {@linkplain #isConfigured configured}<a name="line.251"></a>
<span class="sourceLineNo">252</span>     * @throws NotConfiguredException if the {@link PersistentObject} has been stopped<a name="line.252"></a>
<span class="sourceLineNo">253</span>     */<a name="line.253"></a>
<span class="sourceLineNo">254</span>    protected T getRequiredConfig() {<a name="line.254"></a>
<span class="sourceLineNo">255</span>        T beanConfig = this.getBeanConfig();<a name="line.255"></a>
<span class="sourceLineNo">256</span>        if (beanConfig == null)<a name="line.256"></a>
<span class="sourceLineNo">257</span>            throw new NotConfiguredException();<a name="line.257"></a>
<span class="sourceLineNo">258</span>        return beanConfig;<a name="line.258"></a>
<span class="sourceLineNo">259</span>    }<a name="line.259"></a>
<span class="sourceLineNo">260</span>}<a name="line.260"></a>
<span class="sourceLineNo">261</span><a name="line.261"></a>




























































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